Spray rose plant named &#39;Meideskri&#39;

ABSTRACT

A new and distinct variety of rose plant of the Spray Class is provided which abundantly forms attractive double blossoms that are cream champagne in coloration. The buds are conical in configuration and commonly are borne in clusters on relatively long stems. An erect growth habit is exhibited. The foliage is dense, medium green and non-glossy and contrasts nicely with the light-colored blossoms. The plant is well suited for the production of cut floral sprays under greenhouse growing conditions.

SUMMARY OF THE INVENTION

[0001] The new variety of Rosa hybrida spray rose plant was created byartificial pollination wherein two parents were crossed which previouslyhad been studied in the hope that they would contribute the desiredcharacteristics. The female parent (i.e., the seed parent) of the newvariety was the ‘Kortexung’ variety (United States Plant Pat. No.6,513). The male parent (i e., the pollen parent) of the new variety wasthe product of the cross of the ‘Meifota’ variety (U.S. Plant Pat. No.6,891) and the ‘Keitaibu’ variety (U.S. Plant Pat. No. 7,739). Theparentage of the new variety can be summarized as follows:

‘Kortexung’×(‘Meifota’×‘Keitaibu’).

[0002] The seeds resulting from the above pollination were sown andsmall plants were obtained which were physically and biologicallydifferent from each other. Selective study resulted in theidentification of a single plant of the new variety.

[0003] It was found that the new variety of spray rose plant of thepresent invention possesses the following combination ofcharacteristics:

[0004] (a) forms attractive conical buds on relatively long stems in theform of a spray,

[0005] (b) forms in abundance attractive double blossoms that are creamchampagne in coloration,

[0006] (c) exhibits an erect growth habit, and

[0007] (d) forms attractive medium green non-glossy foliage.

[0008] The light spray inflorescence coloration contrasts nicely withthe dense medium green foliage.

[0009] The new variety well meets the needs of the horticulturalindustry. It is particularly well-suited for use in the production ofcut floral sprays under greenhouse growing conditions.

[0010] The new variety has been found to undergo asexual propagation inFrance by a number of routes, including budding, grafting, and cuttage.Asexual propagation by the above-mentioned methods as performed inFrance has shown that the characteristics of the new variety arestrictly transmissible from one generation to another.

[0011] The new variety has been named the ‘Meideskri’ variety.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

[0012] The accompanying photograph shows as nearly true as it isreasonably possible to make the same in a color illustration of thischaracter, typical specimens of the plant parts of the new variety. Therose plants of the new variety were two years of age were observedduring January while growing on Rosa indica understock in greenhouses atLeCannet des Maures, Var, France. Dimensions in centimeters areindicated at the bottom of the photograph.

[0013]FIG. 1—illustrates a specimen of a young shoot;

[0014]FIG. 2—illustrates a specimen of a floral bud before the openingof the sepals;

[0015]FIG. 3—illustrates a specimen of a floral bud at the opening ofthe sepals;

[0016]FIG. 4—illustrates a specimen of a floral bud at the opening ofthe petals;

[0017]FIG. 5—illustrates a specimen of a flower during the course ofopening;

[0018]FIG. 6—illustrates a specimen of an open flower—plan view obverse;

[0019]FIG. 7—illustrates a specimen of an open flower—plan view reverse;

[0020]FIG. 8—illustrates a specimen of a fully open flower—planview—obverse;

[0021]FIG. 9—illustrates a specimen of a fully open flower—planview—reverse;

[0022]FIG. 10—illustrates a specimen of a floral receptacle showing thearrangement of the stamens and pistils;

[0023]FIG. 11—illustrates a specimen of a floral receptacle showing thearrangement of the pistils (stamens removed);

[0024]FIG. 12—illustrates a specimen of a flowering stem;

[0025]FIG. 13—illustrates a specimen of a main branch;

[0026]FIG. 14—illustrates a specimen of a leaf with three leaflets—planview—upper surface;

[0027]FIG. 15—illustrates a specimen of a leaf with five leaflets—planview—under surface;

[0028]FIG. 16—illustrates a specimen of a stem with one flower; and

[0029]FIG. 17—illustrates a specimen of a stem with a cluster of budsand a flower.

DETAILED DESCRIPTION

[0030] The chart used in the identification of the colors is that of TheRoyal Horticultural Society (R.H.S. Colour Chart). When more commoncolor terms are utilized they are to be accorded customary dictionarysignificance. The description is based on two year-old specimens of thenew variety which were observed during November while budded on Rosaindica understock and growing in greenhouses at LeCannet des Maures,Var, France.

[0031] Class:

[0032]Spray.—

[0033] Plant:

[0034]Height.—a plant pruned to a height of 85 cm commonly producesfloral stems having a length of approximately 40 to 60 cm.

[0035]Habit.—erect.

[0036] Branches:

[0037]Color.—young stems: dark green, near Green Group 138A. adult wood:dark green, near Green Group 138A.

[0038]Thorns.—size: generally small (as illustrated). quantity: few onflowering stems and numerous on adult wood (as illustrated).configuration: very fringed on the upper surface and slightly concave onthe under surface. color: pinkish on young stems and pinkish to tan onadult wood, near Greyed-Orange Group 171A (as illustrated).

[0039] Leaves:

[0040]Petioles.—rather glandular with rare prickles.

[0041]Stipules.—adnate, pectinate, and rather broad.

[0042]Leaflets.—number: 3, 5 (most often), and 7. shape: generally ovalwith a narrow generally symmetrical tip and a generally rounded base (asillustrated). texture: typical and normal. serration: regular. generalappearance: dense, medium green, and dull foliage. color (youngfoliage): upper surface: near Green Group 137A (as illustrated). undersurface: near Yellow-Green Group 148A. color (adult foliage): uppersurface: near Green Group 136A. under surface: near Yellow-Green Group148A.

[0043] Inflorescence

[0044]Number of flowers.—commonly approximately 2 to 5 per stem.

[0045]Peduncle.—near Yellow-Green Group 146A in coloration, (asillustrated), and the length is approximately 7 cm on average.

[0046]Sepals.—light green and tomentose on the upper surface, lightgreen and glabrous on the under surface, and commonly without extensions(as illustrated).

[0047]Buds.—shape: conical. length: approximately 2.5 cm on average.size: small.

[0048]Color.—upper surface: Orange Group 24D, suffused and bordered withOrange Group 25D. under surface: near Yellow-Orange Group 20C, suffusedand bordered with Yellow-Orange Group 23D.

[0049]Flower.—form: double and cup-shaped. diameter: approximately 8 cmon average. color (when opening begins): upper surface: Yellow-OrangeGroup 19D on the external petals, and Yellow-Orange Group 20C and verylightly suffused with Orange Group 27B on the internal petals. undersurface: Yellow-Orange Group 16D. color (when blooming): upper surface:Yellow-Orange Group 19D on the external petals, and Yellow-Orange Group20C and very lightly suffused with Orange Group 27B on the internalpetals. under surface: Yellow-Orange Group 16D. color (at end ofopening): upper surface: Yellow-Orange Group 19D and lightly suffusedwith Orange Group 27B and 27C on the internal petals, and Yellow-OrangeGroup 19D on the external petals. under surface: Yellow-Orange Group19D. fragrance: none. petal configuration: rounded base and a reflexedtip. petal drop: good, the petals commonly detach cleanly. anthers:yellow in coloration. stamen number: approximately 150 on average.filaments: yellow in coloration. pistil number: approximately 100 onaverage. stigmas: yellow in coloration. styles: greenish in coloration.receptacle: light green in coloration, and in longitudinal section inthe shape of a funnel. lasting quality: very long, approximately 8 to 10days on the plant, and approximately 8 to 12 days when cut and placed ina vase.

[0050] Development

[0051]Vegetation.—strong.

[0052]Blooming.—abundant.

I claim:
 1. A new and distinct variety of Rosa hybrida spray rose plantcharacterized by the following combination of characteristics: (a) formsattractive conical buds on relatively long stems in the form of a spray,(b) forms in abundance attractive double blossoms that are creamchampagne in coloration, (c) exhibits an erect growth habit, and (d)forms attractive medium green non-glossy foliage; substantially asherein shown and described.